Shareholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income and Changes in Equity (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     $ 1,792,578  
Beginning Balance, Non Controlling Interest     443  
Net income 70,249 73,385 269,347 191,466
Other comprehensive income, net of tax 21,202 4,068 15,013 17,582
Treasury stock repurchases       (84,448)
Exercise of stock options     23,066 47,752
Repurchases related to share-based compensation arrangements     (22,272) (12,311)
Share-based compensation, net     27,707 22,380
Excess tax benefit from share-based compensation     3,204 1,877
Acquisition of Red Bend     124,253  
Dividends     68,634 61,994
Ending Balance 2,164,418   2,164,418  
Ending Balance, Non Controlling Interest 287   287  
Beginning Balance     1,793,021 1,644,871
Ending Balance 2,164,705 1,767,175 2,164,705 1,767,175
Preferred Stock [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     0 0
Net income     0 0
Treasury stock repurchases       0
Exercise of stock options     0 0
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     0  
Dividends     0 0
Ending Balance 0 0 0 0
Common Stock [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     984 970
Net income     0 0
Treasury stock repurchases       0
Exercise of stock options     8 13
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     0  
Dividends     0 0
Ending Balance 992 983 992 983
Additional Paid-in Capital [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     1,040,254 971,748
Net income     0 0
Treasury stock repurchases       0
Exercise of stock options     23,058 47,739
Repurchases related to share-based compensation arrangements     (22,272) (12,311)
Share-based compensation, net     27,707 22,380
Excess tax benefit from share-based compensation     3,204 1,877
Acquisition of Red Bend     87,994  
Dividends     0 0
Ending Balance 1,159,945 1,031,433 1,159,945 1,031,433
AOCI [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     39,799 21,800
Net income     0 0
Other comprehensive income, net of tax     15,013 17,582
Treasury stock repurchases       0
Exercise of stock options     0 0
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     0  
Dividends     0 0
Ending Balance 54,812 39,382 54,812 39,382
Retained Earnings [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     1,979,234 1,827,267
Net income     269,503 191,466
Treasury stock repurchases       0
Exercise of stock options     0 0
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     0  
Dividends     (68,634) (61,994)
Ending Balance 2,180,103 1,956,739 2,180,103 1,956,739
Treasury Stock [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     (1,267,693) (1,176,914)
Net income     0 0
Treasury stock repurchases       (84,448)
Exercise of stock options     0 0
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     36,259  
Dividends     0 0
Ending Balance (1,231,434) (1,261,362) (1,231,434) (1,261,362)
Total Harman International Industries, Incorporated Shareholders' Equity [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance     1,792,578 1,644,871
Net income     269,503 191,466
Other comprehensive income, net of tax     15,013 17,582
Treasury stock repurchases       (84,448)
Exercise of stock options     23,066 47,752
Repurchases related to share-based compensation arrangements     (22,272) (12,311)
Share-based compensation, net     27,707 22,380
Excess tax benefit from share-based compensation     3,204 1,877
Acquisition of Red Bend     124,253  
Dividends     (68,634) (61,994)
Ending Balance 2,164,418 1,767,175 2,164,418 1,767,175
Non Controlling Interest [Member]        
Schedule Of Shareholders Equity [Line Items]        
Beginning Balance, Non Controlling Interest     443 0
Net income     (156)  
Treasury stock repurchases       0
Exercise of stock options     0 0
Repurchases related to share-based compensation arrangements     0 0
Share-based compensation, net     0 0
Excess tax benefit from share-based compensation     0 0
Acquisition of Red Bend     0  
Dividends     0 0
Ending Balance, Non Controlling Interest $ 287 $ 0 $ 287 $ 0